Undensified Microsilica (Silica Fume) Grade 94U
Undensified Microsilica with Minimum SiO₂ Content 94%
- High SiO2 content.
- High Activity.
- Adjustable Bulk Density.
- Good Fluidity.
| Property | Value |
| SiO2 (Silicon Dioxide, Amorphous) | 94% min |
| Al2O3 (Aluminum Oxide) | Typical 0.48% |
| Fe2O3 (Iron Oxide) | Typical 0.20% |
| CaO (Calcium Oxide) | Typical 0.76% |
| MgO (Magnesium Oxide) | Typical 0.40% |
| K2O (Potassium Oxide) | Typical 1.82% |
| Na2O (Sodium Oxide) | Typical 0.19% |
| LOI (Loss on Ignition) | 3.5% max |
| Moisture | 3% max, Typical 0.52% |
| Retained on 45 micron sieve | 10% max, Typical 1.03% |
| Bulk Density | 350 kg/m3 max |
| pH | 6-8 |
| Fluidity | > 18 cm |
| Specific surface (BET) | 18 m2/gram min |
Standards
ACC® Microsilica Grade 94U conforms to the mandatory requirements of the relevant standards from:
- American Society for Testing and Materials (ASTM C 1240).
- European Committee for Standardisation.
Quality Control
ACC® Microsilica is certified according to ISO 9001.
The chemical composition and physical properties are regularly tested in accordance with international standards.
Packaging
The product is supplied in a range of packaging:
- 500/600kg double plastic woven jumbo bag.
- 20/25kg woven bags with PE liner.
- Special packaging can be supplied on request.